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Also...Info on jiggle pins and flutter valves.
By Dave Shoe - 12/13/2003 4:48:03 PM; IP 216.243.176.34
The "jiggle pin" which was changed to a "flutter valve" design in later FEs) is available on many hydraulic liftered FEs, but I don't find that they are needed when combined with modern cam bearings which have a metered squirt slot machined into the cam bearing which applies oil to the timing gear.

I believe their main purpose was to quickly rid the topoil galley of air upon startup, to assure all lifters got oil, instead of air pumped to them at startup.

I've been trying to figure these suckers out for a while now, and have tentatively determined thay are not really needed on FEs, but might be a luxury item to keep a few cold lifters from clattering at start-up.

JMO,
Shoe.
This thread, so far...
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Collapse <a href=../ForumFE/reply.aspx?ID=19465&Reply=19465><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor19465" onclick="return false;">The "jiggle valve"</a>&nbsp;-- <font color=#0000ff>Glenn, <i>12/13/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=19465', contentMargin: 60, icon: $('anchor19465') }); </script>  The "jiggle valve" -- Glenn, 12/13/2003
Collapse <a href=../ForumFE/reply.aspx?ID=19471&Reply=19465><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor19471" onclick="return false;">What was the actual oiling system failure?</a>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>12/13/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=19471', contentMargin: 60, icon: $('anchor19471') }); </script>  What was the actual oiling system failure? -- Dave Shoe, 12/13/2003
Also...Info on jiggle pins and flutter valves. -- Dave Shoe, 12/13/2003
Collapse <a href=../ForumFE/reply.aspx?ID=19473&Reply=19465><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor19473" onclick="return false;">RE: What was the actual oiling system failure?</a>&nbsp;-- <font color=#0000ff>Glenn, <i>12/13/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=19473', contentMargin: 60, icon: $('anchor19473') }); </script>  RE: What was the actual oiling system failure? -- Glenn, 12/13/2003
Collapse <a href=../ForumFE/reply.aspx?ID=19474&Reply=19465><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor19474" onclick="return false;">Be sure to use sealer on the external plugs.</a>&nbsp;-- <font color=#0000ff>Dave Shoe, <i>12/13/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=19474', contentMargin: 60, icon: $('anchor19474') }); </script>  Be sure to use sealer on the external plugs. -- Dave Shoe, 12/13/2003
 Thank you Dave <eom> -- Glenn, 12/13/2003
Collapse <a href=../ForumFE/reply.aspx?ID=19503&Reply=19465><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor19503" onclick="return false;">Isn't there one special short plug needed?</a>&nbsp;-- <font color=#0000ff>Chuck Brandt, <i>12/18/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=19503', contentMargin: 60, icon: $('anchor19503') }); </script>  Isn't there one special short plug needed? -- Chuck Brandt, 12/18/2003
 RE: Isn't there one special short plug needed? -- Glenn, 12/18/2003
Collapse <a href=../ForumFE/reply.aspx?ID=19486&Reply=19465><img src=../images/reply.png width=30 height=10></a>&nbsp;<a href="#" id="anchor19486" onclick="return false;">RE: The "jiggle valve"</a>&nbsp;-- <font color=#0000ff>giacamo, <i>12/15/2003</i></font><script type="text/javascript"> new HelpBalloon({ dataURL: 'replyb.aspx?ID=19486', contentMargin: 60, icon: $('anchor19486') }); </script>  RE: The "jiggle valve" -- giacamo, 12/15/2003
 RE: The "jiggle valve" -- Glenn, 12/17/2003
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